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COGIS - SPILL OR RELEASE INFORMATION

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Doniphan Shields 1 Wellhead - #493228 InformationStatus: CL - 2/13/2026
Spill Type: ReleaseFacility Name/No.:Doniphan Shields 1 Wellhead /
Facility Type:SPILL OR RELEASEFacility Status:CL
Date of Discovery:2/11/2026Date Closed:2/13/2026
Operator:CRESTONE PEAK RESOURCES OPERATING LLC Operator Number:10633
County:BOULDER  - #013Location:NENE 11 1N69W
Doc Number:404544273Lat/Long:40.070337 / -105.078112  Source: ACTUAL based On LatLong
Municipality
(if within municipal boundaries):
--
Waters of the State: Impacted Media:
Related Remediation Project Number
if work proceeding under an approved Form 27:
41935
 
Spill Description:
Historical impacts were discovered at the wellhead during decommission activities. Source removal will be scheduled.
 
Resolution:
Resolving Document:  404544273Closure Requested:  02/13/2026
Resolution:  Work Procedeing under Form 27
 
Resolution Project:
Date Approved:  7/31/2025Facility Name:  DONIPHAN SHIELDS NENE MULTI-WELL
Date Recv'd:  7/31/2025Facility ID:  336389
Rem DocNum:  404297163Remediation Project #:  41935
Document Type:  FORM 27 qtrqtr: NENE   section: 11  township: 1N   range: 69W   meridian: 6
 
Operator Information:
Operator:CRESTONE PEAK RESOURCES OPERATING LLC
Oper. No.10633
Address:555 17TH STREET SUITE 3700  DENVER  CO 80202
Type of Facility:SPILL OR RELEASE
Fac. Name:Doniphan Shields 1 Wellhead -
County Name:BOULDER
qtrqtr: NENEsection: 11township: 1Nrange: 69Wmeridian: 6